switches - smt 8 8 - 166 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205 general description features functional diagram the hmc322lp4 & hmc322LP4E are broadband non-re ective gaas mesfet sp8t switches in low cost leadless surface mount packages. covering dc to 8 ghz, this switch offers high isolation and low inser- tion loss. this switch also includes an on board binary decoder circuit which reduces the required logic control lines to three. the switch operates using a negative control voltage of 0/-5 volts, and requires a xed bias of -5v. this switch is suitable for usage in 50-ohm or 75-ohm systems. broadband performance: dc - 8.0 ghz high isolation: >30 db@ 6 ghz low insertion loss: 2.4 db@ 6 ghz integrated 3:8 ttl decoder 4x4 mm smt package electrical specifications, t a = +25 c, with 0/-5v control, 50 ohm system typical applications this switch is suitable for usage in dc - 8.0 ghz 50- ohm or 75-ohm systems: ? broadband ? fiber optics ? switched filter banks ? wireless below 8 ghz parameter frequency min. typ. max. units insertion loss dc - 2.0 ghz dc - 4.0 ghz dc - 8.0 ghz 2.1 2.3 2.5 2.5 2.7 2.9 db db db isolation dc - 2.0 ghz dc - 4.0 ghz dc - 6.0 ghz dc - 8.0 ghz 35 30 25 20 40 35 30 25 db db db db return loss on state dc - 2.0 ghz dc - 8.0 ghz 9 6 12 10 db db return loss off state dc - 8.0 ghz 7 10 db input power for 1 db compression 0.5 - 8.0 ghz 19 23 dbm input third order intercept (two-tone input power = +7 dbm each tone) 0.5 - 8.0 ghz 36 40 dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) dc - 8.0 ghz 50 150 ns ns
switches - smt 8 8 - 167 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com input third order intercept point return loss 0.1 and 1 db input compression point insertion loss vs. temperature isolation hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205 -5 -4 -3 -2 -1 0 0123456789 +25 c -40 c +85 c insertion loss (db) frequency (ghz) 30 35 40 45 50 12345678 input third order intercept (dbm) frequency (ghz) 10 15 20 25 30 012345678 0.1db compression point 1db compression point input compression point (dbm) frequency (ghz) -25 -20 -15 -10 -5 0 0123456789 rfc rf1-8 on rf1-8 off return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 0123456789 rf1 rf2 rf3 rf4 rf5 rf6 rf7 rf8 isolation (db) frequency (ghz)
switches - smt 8 8 - 168 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com truth table bias voltage & current control voltages ttl interface circuit note: control inputs a, b, and c can be driven directly with ttl logic with -5 volts applied to the hct logic gates vee pin and to ve e (pin 8) of the rf switch. control input signal path state abc rfcom to: high high high rf1 low high high rf2 high low high rf3 low low high rf4 high high low rf5 low high low rf6 high low low rf7 low low low rf8 vee range = -5.0 vdc 10% vee (vdc) iee (typ.) (ma) iee (max.) (ma) -5.0 5.0 9.0 state bias condition low -3v to 0 vdc @ 25 ua typical high -5 to -4.2 vdc @ 5 ua typical hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205
switches - smt 8 8 - 169 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com absolute maximum ratings outline drawing bias voltage range (vee) -7.0 vdc control voltage range (a, b, & c) vee -0.5v to +1.0 vdc storage temperature -65 to +150 c operating temperature -40 to +85 c maximum input power 26 dbm esd sensitivity (hbm) class 1b electrostatic sensitive device observe handling precautions hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205 notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. lead spacing tolerance is non-cumulative. 4. pad burr length shall be 0.15mm maximum. pad burr height shall be 0.05mm maximum. 5. package warp shall not exceed 0.05mm. 6. all ground leads and ground paddle must be soldered to pcb rf ground. 7. refer to hittite application note for suggested land pattern. part number package body material lead finish msl rating package marking [3] hmc322lp4 low stress injection molded plastic sn/pb solder msl1 [1] h322 xxxx hmc322LP4E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h322 xxxx [1] max peak re ow temperature of 235 c [2] max peak re ow temperature of 260 c [3] 4-digit lot number xxxx package information
switches - smt 8 8 - 170 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com pin number function description interface schematic 1, 3, 5, 7, 12, 14, 16, 18, 21, 23 gnd package bottom has exposed metal paddle that must also be connected to pcb rf ground. 2, 4, 6, 13, 15, 17, 19, 22, 24 rf1 - rf8 & rfc this pin is dc coupled and matched to 50 ohm. blocking capacitors are required if rf line potential is not equal to 0v. 8 vee supply voltage = -5v 10% 9 ctlc see truth table and control voltage table. 10 ctlb see truth table and control voltage table. 11 ctla see truth table and control voltage table. 20 n/c this pin should be connected to pcb rf ground to maximize isolation. pin descriptions hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205
switches - smt 8 8 - 171 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com evaluation pcb the circuit board used in the nal application should be generated with proper rf circuit design techniques. signal lines at the rf port should have 50 ohm impedance and the package ground leads and backside ground slug should be connected directly to the ground plane similar to that shown above. the evaluation circuit board shown above is available from hittite microwave corporation upon request. item description j1 - j9 pcb mount sma rf connector j10 - j14 dc pin c1 - c9 100 pf capacitor, 0402 pkg. u1 hmc322lp4 / hmc322LP4E sp8t switch pcb [2] 104687 evaluation pcb 1.73x1.46 [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc322lp4 / 322LP4E gaas mmic sp8t non-reflective switch, dc - 8.0 ghz v05.1205 list of materials for evaluation pcb 107780 [1]
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